Boys Speedo Swimwear

Speedo is what most Australian boys end up in for school swimming and squad, and this range reflects that — jammers make up the bulk of it, with briefs, aquashorts and toddler styles covering lessons and the younger end.

Why Endurance+ matters for a boy who swims

Boys' swimwear tends to fail the same way: the seat goes baggy, the drawstring stretches, the colour fades and the fabric thins out. That's chlorine breaking down the elastane. Endurance+ is 53% polyester and 47% PBT polyester with no elastane in it, so there's nothing for chlorine to attack. Speedo rates it 100% chlorine resistant and twenty times more fade resistant than conventional elastane swimwear, with four-way stretch so it still moves properly. For a boy swimming several times a week, it's the difference between one pair a season and one pair a term. Our swimwear fabrics guide compares it against Funky Trunks C-Infinity and Zoggs Ecolast.

Jammer, brief or aquashort?

Jammers are the default for school swimming and squad. They finish just above the knee, stay put through dives and turns, and most boys find them the most comfortable option once they start training properly.

Briefs are the traditional racing cut — least drag, most freedom at the hip. Still common at club level and for carnival racing.

Aquashorts sit mid-thigh, between a brief and a jammer. A good middle ground for boys who want coverage but find a jammer too much.

Toddler briefs are cut for learn-to-swim, where warm, heavily chlorinated teaching pools are harder on fabric than any squad pool.

Getting the size right

Endurance+ should feel firm when new. It's polyester and won't stretch to fit the way an elastane blend does, so buy to his current size rather than a size ahead — a jammer bought big will sit wrong and drag in the water. Our size charts cover Speedo alongside every brand we stock.

Common questions

What should a boy wear for school swimming?
A jammer or aquashort in a chlorine-resistant fabric is the usual choice for school swimming and squad. Both stay in place during dives and turns, and chlorine-resistant polyester will survive a full season of lessons where standard swimwear won't.

Is Speedo Endurance+ chlorine resistant?
Yes. Endurance+ is 53% polyester and 47% PBT polyester with no elastane content. Speedo rates it 100% chlorine resistant and twenty times more fade resistant than conventional elastane swimwear.

What is the difference between a jammer and an aquashort?
A jammer finishes just above the knee. An aquashort sits mid-thigh, so it's shorter than a jammer but longer than a brief. Both work for training; the choice comes down to how much coverage he wants.

How long should boys swimwear last?
A chlorine-resistant polyester jammer worn four to six times a week typically lasts a season or longer if rinsed in cold water after every swim and dried flat in the shade. Standard swimwear under the same load can go baggy within two to three months.

Free shipping on Australian orders over $200. Browse the wider boys swimwear range, all Speedo, or narrow to boys jammers, briefs or aquashorts.